TW201024847A - Antiglare film including antiglare agent consisting of two kinds of antiglare particles overlapping each other and method for producing the antiglare film - Google Patents

Abstract

An antiglare film is provided. The antiglare film includes a transparent substrate and an antiglare layer laminated on the transparent substrate. The antiglare layer includes a light-transmitting coating layer and an antiglare agent contained in the light-transmitting coating layer. The antiglare agent consists of first antiglare particles and second antiglare particles overlapping each other. The antiglare film ensures high sharpness of transmitted images, has a high total light transmittance and exhibits good antiglare functions. Further provided is a method for producing the antiglare film.

Description

201024847 31269pif VI. Description of the Invention: [Technical Field] The present invention relates to an antiglare film for use in a display and a method of manufacturing the antiglare film, and more particularly to a transparent substrate and An anti-glare film for laminating an anti-glare layer on a transparent substrate, wherein the anti-glare layer comprises a light-transmissive coating layer and an anti-glare agent (antiglare) contained in the light-transmitting coating layer Agent) 'The anti-glare agent is in the form of individual particles'. Each particle is composed of a first anti-glare particle and a second anti-glare particle which overlap each other, so that external anti-glareness and internal anti-glare value can be controlled. . [Prior Art] In recent years, typical such as liquid crystal display (LCD), plasma display pane (PDP), cathode ray tube (CRT) and electroluminescent display (ELD display) The display has been widely used. When these displays are used in an outdoor environment or in a bright light environment, the device is exposed to the surface of the display and reflected from the surface of the display due to external light (such as sunlight or light from a fluorescent lamp). Reduced performance. Therefore, there is a need for a film that can prevent external light from being reflected from the surface of the display. Under these circumstances, some antireflective films and anti-glare films have been used in displays. The anti-glare film can be treated to have a rough surface. The method generally used for the anti-glare treatment of the anti-glare film can be roughly the same as the type 4 201024847 iizoypit knife. (1) During the curing of the anti-glare film to form a hard coat layer The surface of the anti-glare film is roughened by physical treatment. (2) Hard coating is mixed with inorganic particles and organic particles as an anti-glare agent to form a hard coat layer (Japanese Unexamined Patent Publication No. 2003-347218 and No. 2003-408023). However, these layers suffer from problems such as limited selection of unprocessed materials and uncontrollable anti-glare properties. 9 SUMMARY OF THE INVENTION The present invention provides an anti-glare film comprising a transparent substrate and an anti-glare layer pressed onto the transparent substrate, wherein the anti-glare layer comprises a light-transmitting coating layer and an anti-reflection layer included in the light-transmitting coating layer Glare agent. The anti-glare agent is composed of the first anti-glare particles and the second anti-glare particles that overlap each other. The present invention further provides a method for manufacturing an anti-glare film, comprising a hard coating agent, a first anti-glare that overlaps each other The particles are mixed with an anti-glare agent composed of the second anti-glare particles and a solvent to prepare a mixed solution; the mixed solution is applied onto the transparent substrate to form an anti-glare layer. In the antiglare layer, the light transmissive coating layer contains an anti-glare agent; and the anti-glare is dried and cured. The present invention further proposes a display comprising an anti-glare film. The above described features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] It should be understood that when one element is "on another element, its 201024847 31269pif may be directly on another element' or there is one or more intervening elements. As used herein. "and/or" includes any and all combinations of one or more related items. It is to be understood that although the terms "first", "second", "third,", etc. are used herein. Various elements, components, regions, layers, and/or blocks are described, but such elements, components, regions, layers, and/or blocks are not limited to these terms. These terms are only used to distinguish one element, component, region, layer and/or block and another element, component, region, layer, and/or block. Thus, a first element, component, region, layer or layer described herein can be considered as a second element, component, region, film layer or block, without departing from the teachings of the invention. The terminology used herein is for the purpose of describing particular embodiments only and As used herein, unless the context clearly dictates otherwise, the singular forms "-," and "," can also be used to include the plurality of forms. It is understood that when "includes" is used in the text, the specified = Two regions, objects, steps, operations, turns, and/or combinations of one or more other features, regions, objects, steps, components, components, and/or combinations thereof. The bite top term 'for example, 'lower,' or 'bottom' and ''higher, ί, can be used to describe the pair of elements inserted in the figure = yes is 'except as described in the circle If the package is in different orientations, for example, another component will become a specific orientation in this element (4) 201024847, and "lower" may include "lower" and "higher", two orientations. Likewise, another element that is described as "below" an element will be "above" the element. Therefore, "below" can contain "above," and "below," two orientations. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning meaning It is to be further understood that, as with the general definition of a dictionary, these terms should be interpreted as meanings in the relevant art and the present invention, and will not be interpreted as idealized or excessively formal meaning unless explicitly defined. . Unless otherwise defined, "total solids content", as used herein, is formed after a composition comprising a hard coating agent, an anti-glare agent and a solvent is applied to a transparent substrate, dried, and cured. The weight percentage of the coating layer (based on the total weight of the composition).

(A) Anti-glare film A Figs. 1 to 3 are schematic cross-sectional views of an anti-glare film according to an embodiment of the present invention. Referring to Fig. 1 through Fig. 3, the antiglare film has a structure in which the antiglare layer 2 is bonded to the transparent substrate 10. Any material can be used to make the transparent substrate 1 as long as the material is transparent. A polymeric material (i.e., a plastic film) can be used in the manufacture. In one embodiment, the transparent substrate] [〇 may be selected from the group consisting of celluloses such as acetyi ceuui〇se, diacetyl celluiose, and tricyon cellulose shirts. Cdlui〇se) 201024847 31269pif, propionyl cellulose, acetylpropionyl cellulose and nitrocellulose; polyester, such as polyethylene terephthalate (polyethylene terephthalate), polybutylene terephthalate, polyethylene naphthalate, polytetramethylene terephthalate (poly-1, poly-1, 4-cyclohexanedimethylene terephthalate), polyethylene-1,2-diphenoxyethane-4,4'-dicarboxylate and terephthalic acid Cyclohexanedimethylene terephthalate; and polyoxane, such as polyethylene (polyethylen), polypropylene and polymethylpentene, a group of materials. In an embodiment, the transparent substrate 10 may be selected from the group consisting of, but not limited to, polymethyl methacrylate, polyvinyl chloride, polyvinylidene chloride, and polymethylene. Polyvinyl alcohol, polystyrene, polycarbonate, polyamide, polyether sulfone, polyether ketone, polysulfone, and Made of materials of a group consisting of polyimide. Of course, triacetyl cellulose (TAC), polyethylene terephthalate (PET) or polycarbonate (PC) may be suitable materials for the transparent substrate of the optical film due to high transparency. Triethylene fluorene cellulose and polyethylene terephthalate can be used for the polarizing film of the LCD and the optical filter of the PDP. 201024847 The Jizoypu anti-glare layer 20 includes a light-transmitting coating layer 1 and an anti-glare agent 30 contained in the light-transmitting coating layer 1. The anti-glare agent 30 is composed of two different anti-glare particles, that is, the first anti-glare particles 2 and the second anti-glare particles 3 which are superposed on each other. 4 is a schematic cross-sectional view of an anti-glare agent 30, which is included in an anti-glare film, in accordance with an embodiment of the invention. In the anti-glare agent 30 shown in Fig. 4, the first anti-glare particles 2 overlap the second anti-glare particles 3. In one embodiment, the first core and the second core can be respectively grown by combining a seed of the first core with a seed of the second core, and by polymerization. The first anti-glare particles 2 and the second anti-glare particles 3 are formed. Therefore, at the center of the anti-glare agent 30, a part of the first anti-glare particles 2 overlaps with a part of the second anti-glare particles 3. In an embodiment, the first core may be selected from, but not limited to, styrene particles (refractive index: 1.59), polyvinyl chloride particles (refractive index: 1.60), and high refractive index acrylic particles (refractive index) : 1.59) The group consisting of; the second core may be selected from, but not limited to, highly crosslinkable acrylic particles (refractive index · 1.51), highly crosslinkable methyl methacrylate (methacrylic) Particles (refractive index: 1.51), acrylic-styrene copolymer particles (refractive index: 1.55), melamine particles (refractive index: 1.57), and polycarbonate particles (refractive index: 1.57) In general, internal scattering can be achieved by forming an irregular shape on the surface of the coating layer or by using light-transmitting polymer particles from the light-transmitting coating layer and having different refractive indices in the coating layer. The principle of imparting an anti-glare value to a coating layer formed on a transparent substrate is achieved. 9 201024847 31269pif People with anti-glare particles with different refractive indices can be used as light-transmissive poly: low refraction: use external anti-glare value and internal anti-glare value. The anti-glare particles having the phase ^ ^ ' are highly crosslinked acrylic particles (refractive system t1), highly crosslinked methacrylic particles (refractive index: 1.51), C, and the copolymer copolymer particles (refractive index) 55) , anti-glare particles with a relative refractive index of tripolychloroamine (refractive index ^57), polycarbon_particle (refractive index: 157), etc., are styrene particles refractive index. 1.59), polygas B Dilute particles (refractive index: 16 〇), high refractive index acrylic particles (refractive index: 159), and the like. In contrast, the first anti-glare particle 2 and the second anti-glare particle 3 respectively make the first core and the second by combining the seed of the first core with the seed of the second core and by polymenzation. The nucleus grows to form rather than simply mixing or combining the two anti-glare particles, so that part of the first anti-glare particles 2 overlaps with the -part of the second anti-glare particles 3. That is to say, the internal anti-glare function and the external anti-glare function of the anti-glare film 30 can be simultaneously controlled by using an anti-glare agent in the form of a single particle. In an embodiment, the anti-glare layer 20 may have a thickness of 2 to 1 to #111. The anti-glare layer 20 may have a thickness of from 2 μη to 7 μηη. The thickness of the antiglare layer 2〇 can be adjusted depending on the antiglare property of the desired antiglare film and the mechanical properties (e.g., hardness) of the coating layer. If the antiglare layer is too thin, the hardness of the coating layer is insufficient. If the anti-glare layer is too thick, curling may occur in the film layer to lower the external anti-glare property of the film layer. Fig. 5 is a schematic cross-sectional view showing the principle of the anti-glare function of the anti-glare film of the embodiment of the present invention. Referring to FIG. 5, the anti-glare layer of the anti-glare film comprises an anti-glare agent 201024847 3Ι269ρίί composed of the heterogeneous h-ray particles 3. The external light Z incident on the anti-glare layer is exposed on the surface of the light-transmitting coating layer 2, the second anti-glare particle 2 === the light-transmitting coating layer 1 and the interface scattering between the light-transmitting coating = ^ particle 3 Provides an internal anti-glare number for the anti-glare film. 3Different Refractive Systems In the embodiment, the first anti-glare particles 2盥;=4 may have a refractive index of h57 to L62, and the == glare particles 3 may have a refractive index of H9 to 1.55. The use of::?Ξ: two ===: ::: provides internal anti-glare characteristics and the anti-glare film through the third eccentric particle 2 and the second anti-glare particle 3 can be based on the desired anti-glare film _ The anti-sanding and external anti-glare changes. _ Ξ 1H7 is a full-diameter (scanned electron microscope iscannmg electron microscopy, SEM) image of a sleek agent contained in an anti-glare film according to an embodiment of the present invention. (4) The "full straight grip" of the anti-glare agent means the distance between the two points, and the line connecting the centers of the first anti-glare particles and the second anti-glare particles in one distance = is extended and brought into contact with the individual particles. 11 201024847 31269pif Please refer to FIG. 6 , the diameter of the individual particles is 5.1=5.15哗) is larger than the full diameter of the anti-glare agent (10), and the first anti-glare particles and the second anti-glare particles of the anti-glare agent are combined with each other to form a heavy defense. The glare agent (the first anti-glare particles and the second anti-glare particles 1) has a full diameter of from 3 μm to 7 μm. Anti-glare is related to the final thickness of the glare film. Less than 3 handsome anti-glare agents: This leads to a reduction in the thickness of the anti-glare layer to control the first value. If the thickness of the anti-glare layer is too small, the external anti-glare of the hard body has a full diameter of more than 7 Å, and the anti-glare layer may be too thick, so that curling may occur in the film layer to lower the external anti-glare property of the film layer. The size of the anti-glare __ anti-sweet can be changed according to the desired haze of the anti-glare film, as shown in Fig. 3 to Fig. 3, in the drawing process, the first anti-glare particles have a higher The refractive index is larger with a larger diameter, while the second anti-glare particle has a smaller (four) refractive power and a smaller remainder. In Fig. 2, the first anti-glare particles have a higher refractive index and a smaller diameter, and the second anti-glare particles have a lower refractive index and a larger diameter. In Fig. 3, the first anti-glare particles have a higher refractive residue, and the second anti-glare particles have a lower refractive index, and both have the same diameter. The haze of the anti-glare film is determined by varying the difference in refractive index between the light-transmitting coating layer 丨 and the anti-glare layer 30 of the anti-glare layer 2〇. (B) Manufacture of Anti-Glare Film In another embodiment, a method of manufacturing an anti-glare film is provided, which comprises: mixing a hard coating agent, first anti-glare particles and second anti-glare particles 12 overlapping each other 201024847 3i2 An anti-glare agent composed of 〇ypit and a solvent to prepare a mixed solution; the mixed solution is coated on a transparent substrate to form an anti-glare layer. In the anti-glare layer, the light-coated layer contains an anti-glare agent; and the anti-glare layer is dried and cured. The hard coating agent forms a light transmissive coating layer. The hard coating agent may contain a heat-and radiation-curable resin, a photopolymerization initiator, inorganic fine particles, a leveling agent, and a surface modification for the antiglare layer. Surface m〇difier ❹ and silane coupling agent. The heat and radiation curable resin may be a compound having two or more functional groups. These compounds include a polymerizable unsaturated bond in the molecule (for example, methacryloyl (methacryloyl) and methacryloyloxy) or anionic polymerizable functional groups (such as epoxy). An oligomer, a monomer, and a polymer of the group (ep0Xy). These compounds may be used singly or in combination to prepare a composition. This composition is liquid prior to curing and has a vinyl group and an acrylic group in the molecule to be crosslinked by curing. If it is a monomer, it can be, for example, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, and tetrahydrofurfuryl. Acrylate), glycidyl methacrylate, acryloylmorpholine, 2-cyanomethacrylate, Ν, Ν-dimethylpropanoic acid N,N-dimethylacrylamide, Ν-glycine pyrrolidone 13 201024847 31269pif (N-vinylpyrrolidone), N-ethyl bake base · ε_ caprolactam, N-vinyl-s-caprolactam Phenoxy diethyleneglycol methacrylate, pentaerythritol tetramethacrylate, dipentaerythritol trimethacrylate, trimethyl acrylate trimethyl acrylate Trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, dipentaerythritol tetramethacry Late), erythritol dimethacrylate, pentaerythritol trimethacrylate, and 1,2,3-tetramethylpropionic acid hexane vinegar (1, 2,3-cyclohexane tetramethacrylate). If it is an oligomer, it may be, for example, a polyester methacrylate obtained by reacting a polyester polyol with methyl acrylate; and a bisphenol epoxy Resin reacts with methyl acrylate, polyisocyanate reacts with hydroxymethacrylate or polyhydric alcohol (p〇ly〇l), organic polyisocyanate and hydroxy methacrylate compound The resulting urethane methacrylate. The ethylenically unsaturated group-containing compound which can form a crosslinked product by curing may have an epoxy group selected from the group consisting of isocyanate, epoxy, aldehyde, and pseudo-based. 201024847 ^l^oyput functional group of a group consisting of (carbonyl), hydrazine, carboxyl, methylol and active methylene. The crosslinking group may be, but is not limited to, a reactive group derived from decomposition of a functional group. The compound having a crosslinking group can be crosslinked by heat after coating. A photopolymerization initiator included in the hard coating agent is used to cure the composition under UV radiation. The photopolymerization initiator includes 1 -hydroxycyclohexyl phenyl ketone and 2,2-dimethoxy-2-phenylacetophenone (2,2-dimethoxy-2-phenylacetophenone). ), xanthone, fluorinated ketone, 4,4'-dimethoxybenzophenone, 4,4'-diamine diphenyl 4,4'-diaminobenzophenone, Michler's ketone, benzoin propyl ether, benzoin ethyl ether, benzyl dimethyl ketal , 1-(4-isopropylphenyl)-2-teroyloxy-2-methylpropan-1-yl (1 -(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1 -one), 2 - 2-hydroxy-2-methyl-l-phenylpropan-l-one, oxysulfonate ginseng (Xian 0 311^10116) , diethyl oxysulfate onion ((^ also) ^111〇\&11^10116), 2-isopropylthioxanthone, 2-chlorothioxanthone '2-Methyl-l-[4-(methylthio)phenyl]-2-morpholinyl-propan-1-one (2-methyl-1 -[4-(methylthio)phenyl) ]-2-morpholino-propan-1 -one), 2,4,6-trimethylbenzoyldiphenylphosphine oxide (2,4,6-trimethylbenzoyldiphenylphosphine oxide) and oxidized bis-(2,6-di Methoxybenzhydrazide)-2,4,4-trimethylpentylphosphine 15 201024847 31269pif (bis-(2,6-dimethoxybenzoyl)-2,4,4-trimethylpentylphosphine oxide). These photopolymerization initiators may be used singly or in combination of two or more. The amount of photopolymerization initiator added may be between 0.5% by weight and 10% by weight. The amount of the photopolymerization initiator to be added may be between 0.5% by weight and 5% by weight. If the amount of the photopolymerization initiator added is less than 0.5% by weight, the hardness of the coating layer may be insufficient after the curable composition is cured. Meanwhile, if the amount of the photopolymerization initiator added exceeds 1% by weight, the photopolymerization initiator itself may react with radicals to inhibit polymerization of the curable resin. The inorganic fine particles contained in the hard coating agent are used to control the refractive index of the antiglare layer and to make the film layer stronger after curing. The average size of the inorganic fine particles may be not more than 0.5 μm. The inorganic fine particles may have an average size of not more than 15 nm. The inorganic fine particles may be selected from the group consisting of ceria, titania, alumina, tin oxide, calcium carbonate, barium sulfate, talc, kaolin and sulfuric acid. The amount of the inorganic micro-ruthenium particles added may be from 10% by weight to 9% by weight based on the total weight of the hard coating agent. The amount of the inorganic fine particles added based on the total weight of the hard coating agent may be between 3 % by weight and 60 % by weight. The hard coating agent may contain a fluorine or ruthenium-based leveling agent or a fluorine-based and shoal-based leveling agent, (4) avoiding uneven flow (mm-unif0rm flow) during high-speed coating and causing after coating Non-uniform drying, and ensuring flawless performance (eg, coating strip 16 201024847 31269pif coating and point defect) and coating uniformity. The hard coating agent may contain a surface modifying agent and a decane coupling agent to increase dispersibility and the bond between the heat and radiation curable resin and the anti-glare particles. The solvent used in this method may be a mixture of a main solvent and a secondary solvent, which may vary depending on the substrate to be coated. Soluble and swellable solvents are used as secondary solvents. Soluble and swellable solvents include ketone (eg, methyi ethyl ketone, cyclohexanone, acetone, diacetone alcohol, and polyhydric (polyhydric) Alcohols)), mystery ethers (such as methyl cellosolve, ethyl cellosolve, butyl cellosolve and cellosolve acetate, esters (eg methyl acetate and ethyl acetate), halogentated hydrocarbons (eg chloroform, methylene chloride and tetrachloroethane) Nitrogenous compounds (eg, nitromethane, acetonitrile, N-methylpyrrolidone, and N,N-dimercaptocarboxamide (N, N) - dimethylformamide)) and other solvents (such as dimethyl sulfoxide). These solvents may be used singly or in combination. The main solvent may be any solvent other than the secondary solvent, but it is not necessary to be limited. (parts by weight) of a curable resin, the amount of the solvent may be from about 20 parts by weight to about 1 part by weight. The amount of the solvent of the curable resin in 1 part by weight of 17 201024847 31269pif can be borrowed from 5 〇 The parts by weight to 1 part by weight. If the amount of the solvent is less than 10 parts by weight, the difficulty in uniformly applying the composition on the substrate due to the high viscosity of the composition, and the amount of the solvent exceeds 100. In parts by weight, pinholes are left after coating and drying. In one embodiment, coating the mixed solution on the substrate can be carried out by various wet processes, including roll coating (r coatingU coating), die coating, gravure coating, micro gravure coating, wire bar coating, jQQife ❹ coating , slot die coating, and spin coating. In one embodiment, the drying step can be carried out by heating at a temperature of 4 〇 至 c to loo to remove the solvent from the composition. After drying, the coating layer is cured by UV light from a UV curing system to form an anti-glare layer. The UV curing system can use a uv lamp such as a high pressure mercury lamp, a halogen metal lamp, a xenon lamp or a microwave electrodeless lamp (mier〇wave eleetj Odeless lamp). The wavelength range and exposure dose used to cure the coating layer can be 200 nm to 400 nm and 1 〇〇 mj/cm 2 to 1,000 mJ/cm 2 , respectively. (C) Display A display including an anti-glare film is provided in accordance with other embodiments of the present invention. In an embodiment, the display can be a cathode ray tube, a plasma display, an electroluminescent display, or a liquid crystal display. The anti-glare film is placed on the outer surface of the display 18 201024847 31269pit to achieve low reflection of the display. According to the principle of optical reflection, the anti-glare film avoids the contrast and visibility from external light reflection and the deterioration of the received reflected image. The embodiments will be described in more detail below with reference to examples. However, these examples are for illustrative purposes only and are not intended to limit the invention. EXAMPLES @Examples 1 to 41 First, the transparent hard coating agent (DIC, RC26-338), antiglare agent (SX8707 (C)-04, JSR) in Table 1 was mixed with a solvent to prepare a mixed solution. Table 1 Anti-glare agent Refractive index of the second anti-glare particle of the first anti-glare particle Refractive index 1 L59 1.51 In particular, the anti-glare film was produced by the following procedure. The hard coating agent was diluted with a main solvent until the solid content reached 5 parts by weight. After the anti-glare agent particles are added to the main solution, the mixture is diluted with a secondary solvent until the final mixed solution has the desired solid content. Next, the mixed solution is coated on a transparent substrate to form an antiglare layer, wherein the antiglare agent is contained in the light transmissive coating layer. The mixed solution was applied using a wire bar coater. When the transparent substrate is a PET film, a mixture of methyl isobutyl ketone and methyl ethyl ketone (MIBK/MEK) as a ketone-based solvent is used as a main solvent, and when When the transparent substrate is a TAC film, a mixture of butyl acetate 'BA and isopropyl alcohol (IPA) is used as a main solvent. MIBK, propylene glycol monomethyl ether acetate (PGMEA), propylene glycol monomethyl ether (PGME) or cyclohexanone (cyd〇hex survey 'CCH) As a secondary solvent. The anti-glare layer is then dried in a desiccator followed by UV curing. According to the solution. The volatility of the agent was adjusted between 4 〇〇c (initial temperature) and 100 ° °C. The uv curing conditions were changed according to the curability of the hard coating agent' and the total irradiation dose was adjusted to 5 〇〇 1 咖 2 . Tables 2 and 3 show the specific reaction conditions. The haze and transparency values of the film produced by the example are measured, and the results are shown in Table 2 and Table 3. 20 201024847 (%) CN inch. 16 S inch · Ι 6 0 Ι. Ι 6 < ΝΓΙ 6 ΙΊ 6 ST6 SI6 006.06 6ΪΤ6 00<ν6 06.16 ❹ ί-69πε (%)?3 Tibetan Mastiff^^ {%1) Φ1<«>[#20 S 狯忘-&-驷<«>画衮60·π 95·ει寸9·6Ϊ 00·£3 ελ.ϊζ 6Ζ/6 SOI οοε.6 οο9τ ΙΓΓΠ εοο, inch s9·ς inch _ε inch-ε vo-s 9-S 9-s inch·fn inch _ε inch-ε 3id WI 3VI viod \Ή 3V1 V3W2 13d vlod US vwlAtod Isvawod wiUVH vis vaoi NHW/^PQIW H3d vaid Vdl 3VH V3PM2 vaU<H miw :almHs

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VdlUVH VPQui Hwd Vdl 3V1 VPQui ^lm§ Is VdlUVI vaU<H l«d οε οε οε οιοι οι εε.οο εε.οο εε.οο JS.693 ι inchο寸6ε οοε 9ε ιηε inch ε εε 201024847 31269pif Example 42 to 53 First, a transparent hard coating agent (DIC, RC26-338), one of the four antiglare agents (SX8707 (C)-04, JSR) in Table 4 was mixed with a solvent to prepare a mixed solution. Each anti-glare agent is composed of two different anti-glare particles (i.e., having first anti-glare particles and second anti-glare particles of the same size). The characteristics of the anti-glare agent are compared and evaluated below. ❹ Table 4 Anti-glare agent type The first anti-glare particle folds the second anti-glare particle

The 10 release anti-glare film was manufactured by the following steps. The main solvent was used to achieve a solid content of 50 parts by weight. After adding the anti-glare 四 (4) into the solution, the mixture is diluted with a secondary solvent until the final mixed solution has the desired solid content. The phase mixture was applied to a transparent base 'thiddle layer' in which an anti-glare agent was contained in the light-transmitting coating layer. 25 201024847 31269pif The mixed solution was applied using a wire bar coater. Then, the antiglare layer was dried in a desiccator, followed by uv curing. The drying temperature is adjusted between 40 T (initial temperature) and 100 °c depending on the volatility of the solvent. The UV curing conditions were changed depending on the curability of the hard coating agent, and the total irradiation dose was adjusted to 5 μm J/cm 2 . Table 5 shows the specific reaction conditions. The haze and transparency values of the film layers prepared in Examples 42-53 were measured and the results are shown in Table 5.

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Inch inch ε e rn τ τ τ ι ι I rns u IS OS 6 inch 8 inch inch inch 9 inch *n inch inch inch inch inch < inch inch 201024847 31269pif Comparative example 1 to 3 In order to evaluate the function of anti-glare agent, The following steps were used to produce a hard coating film layer containing no anti-glare agent. First, a transparent hard coating agent (DIC, RC26-338), a main solvent, and a fifth main solvent were mixed to prepare a mixed solution. Next, the mixed solution was applied onto a transparent substrate using a roll-to-roll coater, by drying and solidification. When the transparent substrate is a PET film, a MIBK/MEK mixture as a ketone-based solvent is used as a main solvent, and when the transparent substrate is a ίο TAC film, a mixture of BA and IPA is used as a main solvent. PGMEA or MIBK is used as a secondary solvent. Then, the drying temperature was adjusted to 40 depending on the volatility of the solvent. 〇; initial temperature) with 100. (Between: UV curing conditions vary depending on the hardenability of the hard coating agent, and the total irradiation dose is adjusted to 5 〇〇mj/cm2. 15 Table 6 shows specific reaction conditions. Measurements are made by Comparative Example ι_3 The haze and transparency values of the film are valued and the results are shown in Table 6. 201024847

Ju-ε Transparency (%) 91.95 92.14 92.38 Haze (%) 0.67 0.89 0.98 Thickness (μπι) V〇1 1 t yr\ <r\ Secondary solvent MIBK PGMEA PGMEA Main solvent MIBK/MEK BA IPA Transparent substrate PET TAC Anti-glare agent content (wt%) in total solids content of TAC 〇〇〇Comparative example rH ΓΗ 201024847 31269pif Analysis - Haze 舆 Transparency measurement using a haze meter (Nippon Denshoku Kogyo Co.) to measure in Example 1-53 The haze and transparency values of the film layers produced in Comparative Examples 1-3. The internal haze and external haze of each film were measured using a pressure-sensitive adhesive (PSA). The total haze of the film is defined as the sum of the internal haze and the external haze. Internal haze + external haze = total haze

Specifically, an optical double-sided pressure-sensitive adhesive film is adhered to the antiglare layer of the film layer under pressure. The pressure sensitive surface of the PSA film is attached to the glass surface. The haze of the final structure was measured using a haze meter. The results are shown in Tables 2, 3, 5, and 6. The results in Tables 2, 3, 5, and 6 show that the anti-glare film of Example i_53 has 88°/. Or higher total light transparency and a total haze value of 4% to 53%. Further, the inner haze value of the film layer is 74% or less of the individual total haze value. In particular, the total light transparency value of the anti-glare film of Examples 1-53 and comparative examples

The total light transparency values of the anti-glare films of 1-3 are equal or higher. In addition, the internal haze value and the external haze value of the anti-glare film of Example 1-53 can be changed by changing the amount of the anti-glare agent and the amount of the anti-glare agent added. Free control. In short, the anti-glare film provides the following advantages. An anti-glare agent in the form of a single particle (composed of a first anti-glare particle and a second anti-glare particle), and an anti-glare agent, is used in combination with an anti-glare agent in a mixture of two types of materials. The pattern and content as well as the degree of coating are varied as appropriate depending on the (four) characteristics of the desired anti-glare film. In addition, f 30 Φ ❹ 201024847 J12t9pif The internal haze of the anti-glare film associated with the total haze can be achieved by using a single particle form of anti-glare agent (each of which is overlapped by the first anti-glare particles and the second anti-glare) The particles are structured to be adjusted in a wide range. Further, the anti-glare film of the present invention has excellent characteristics in transparency and haze as compared with a general anti-glare film. By preventing the squeegee by spreading the thief agent in a hard coat which can be cured by υν, and then coating it, it is possible to maintain the Scratdl resistance, the uniformity of appearance (叩__ uniformity), and the high-speed coating. Sex (high_speedc〇atabiiity). Therefore, the roller process can be suitably used for the manufacture of an anti-glare film. The display using the anti-glare agent of the present invention (refractive index and size of two kinds of anti-glare particles which are re-raised with each other) has high anti-glare value without losing the image quality of local definition, and reduces the surface reflection visibility to the maximum OBJECTS OF THE INVENTION Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any of them can be used in the spirit and scope of the present invention. More dynamic and smooth, so the invention of the protection of the scope of the _ _ _ special · riding definition is subject to. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a method according to the present invention. In the anti-glare film, the anti-glare agent has a high refractive index from two types of non-profiles. = has a lower refractive index and a smaller diameter. m is a schematic view of a section 31 201024847 31269pif of an anti-glare film according to another embodiment of the present invention, in which an anti-glare agent is formed, wherein the species has a high refractive index; : The composition has a lower refractive index and a larger trait' and another dry circumstance circle: == again: the embodiment "shows that the anti-glare film profile II has the same diameter of the anti-two = by two different refractions Figure 4 is a schematic view of an embodiment of the present invention. The anti-glare agent is included in the anti-glare film, wherein the second anti-glare particles overlap.

Fig. 5 is a cross-sectional view showing the principle of the present invention. Fig. 6 is an SEM image of an antiglare agent contained in an antiglare film according to an embodiment of the present invention. Fig. 7 is an SEM image of an anti-glare agent contained in an anti-glare film according to another embodiment of the present invention. [Explanation of main component symbols] ❿ 1 : Light-transmissive coating layer 2: First anti-glare particles 3: Second anti-glare particles 10 = Transparent substrate 20: Anti-glare layer 30: Anti-glare agent 32

Claims (1)

201024847 312〇ypif VII. Patent Application Range: L An anti-glare film comprising a transparent substrate and an anti-glare layer pressed onto the transparent substrate, wherein the anti-glare layer comprises a light-transmissive coating layer and is included in the An anti-glare agent in the light-transmitting coating layer, the anti-glare agent being composed of first anti-glare particles and second anti-glare particles that overlap each other. 2. The anti-glare film according to claim 1, wherein the first anti-glare particle and the second anti-glare particle are combined and borrowed by seed of the first core and seed of the second core The first core and the second core are respectively grown by polymerization, and the first anti-glare particle and the second anti-glare particle partially overlap at the center of the anti-glare agent. 3. The anti-glare film of claim 2, wherein the first core is selected from the group consisting of styrene particles, polystyrene particles, and high refractive index acrylic particles; The free height is crosslinkable = a group of acrylic particles, highly crosslinkable methacrylic acid particles, acrylic acid styrene copolymer particles, trimeric amide particles, and polycarbonate particles. 4. The anti-glare film of claim 1, wherein the anti-glare agent has a full diameter of from 3 μm to 7 μm. 5. The anti-glare film of claim 1, wherein the first anti-glare particle and the second anti-glare particle have different refractive indices. 6. The anti-glare film according to claim 5, wherein a difference in refractive index between the first anti-glare particle and the second anti-glare particle is 0.04 to 0.1. The anti-glare film according to claim 5, wherein the 33rd 201024847 31269pif-anti-glare particle has a h57 magical illusion of the astigmatism particle having a U4 to I·% fold (four) number/, And the second prevention 8. The amount of the solid content of the application is as follows: = glare _ is (10) to two ί: based on the total glare layer having 2^: to the film, the anti-transparent selection ==where B. Er's 'poly-p-phenylene is called cyclohexane dimethyl mill' poly-b = A:, B-burning from two acid gambling, to stupid two? Acid cyclohexyl dimethyl ketone, polyethylene; condensed polymethyl stalk, polymethyl methacrylate, deer, polyethylene, polystyrene, polystyrene, polystyrene, polycarbonate The material of the group consisting of polystyrene, poly-hard, and poly-imine is 0. A method for producing an anti-glare film, comprising: constituting a mixed hard coating agent, an anti-glare agent, and a solvent to prepare a mixed solution, wherein the anti-glare is separated from each other by a first thief particle and a second anti-glare particle The mixed solution is coated on a transparent substrate to form an antiglare layer, wherein the light transmissive coating layer contains the antiglare agent; and the antiglare layer is dried and cured. 12. The method of manufacturing an anti-glare film according to claim 5, wherein the coating solution is selected from the group consisting of roll coating, die coating, and gravure printing. The coating process in the group consisting of coating, micro gravure coating, wire coating, doctor blade coating, slit die coating, and spin coating is performed. 13. The method of producing an anti-glare film according to the invention of claim 5, wherein the drying is carried out at a temperature of from 40 °C to 100 °C. 14. An indicator comprising an anti-glare film as described in the scope of the patent application. 15. The display of claim 14, wherein the display is a cathode ray tube, a plasma display, an electroluminescent display, or a liquid crystal display. 35